Shaft-coupling



(No Model.)

B. J. STUART.

SHAFT COUPLING. No. 886,278. Patented July 17, 1888.

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ATTORNEYS.

UNITED STATES PATENT FEIcE.

ROBERT J. STUART, OF NEWV HAMBURG, NEYV YORK.

SHAFT-COUPLING.

SPECIFICATION forming part of Letters Patent No. 386,278, dated July1.7, 1888.

Application filed July 31, 1886. Renewed March 3. 1888. Serial No.266,104. (No model.

To aZZ whom, it may concern.-

Be it known that I, ROBERT J. STUART, of New Hamburg, Dutchess county,and State of New York, have invented a new and Improved Shaft-Coupling,of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in both figures.

Figure 1 is a sectional elevation of my new shaft-coupling as it appearswhen applied for use, and Fig. 2 is a sectional elevation taken on theline x a: of Fig. 1.

The invention will first be described in connection with the drawings,and then pointed out in the claims.

A represents the coupling-frame. This is made cylindrical in form toreceive ash-aft, B, at each end, and is cast with the central concavedbridge or seat, 0, to support the shafts B. The shafts are locked in thecoupling, or ratherthecouplingto theshafls,by two wedges, D D, which aredrawn into the casing A, to bind upon the shaft, by screw-bolts E,passed through the plain passages a of the wedge D, and screw into thescrew-threaded sockets b of the wedge D. The wedges D I) are each formedwith ribs 0 upon its upper or outer surface and with a concave in itsinner surface to fit upon the shaft, as shown in Fig. 2, and between theribs 0 are formed upon the wedges the lugs e, by which the wedges may bedriven out of the casing when it is desired to remove the coupling ordisconnect the shafts. Upon the inner surface of the casing A are formedthe ribs (2 d, the edges of which slant from each end of the casing Atoward the center thereof, so they form double-inclined rails for thewedges D D to act against when drawn into the casing by the screws E.The ribs 0 c of the wedges fit against the ribs (1 d of the casing, asshown clearly in Fig. 2.

By constructing the shaftcoupling as described the same is not onlypractical, but cheap and strong and very quickly and easily applied andremoved.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The casing A, formed with the central bridge or seat, 0, for theshafts and with the double-inclined ribs d, parallel with each otherandprojecting from theinnerwallofthe casing, in combination with the twoopposite wedges D D and screw-bolts E, for drawing the wedges into thecasing, substantially as described.

2. The wedges D, formed with the inclined ribs 0 and studs 6, incombination with the bolts E and the casing A, formed with the seat 0,and with the inclined ribs d, substantially as described.

ROBERT J. STUART.

\Vitnesses:

WILLIAM H. RAYMOND, THOMAS STUART.

